282223813 has 4 divisors (see below), whose sum is σ = 283435308. Its totient is φ = 281012320.

The previous prime is 282223789. The next prime is 282223819. The reversal of 282223813 is 318322282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 318322282 = 2 ⋅159161141.

It can be written as a sum of positive squares in 2 ways, for example, as 47306884 + 234916929 = 6878^2 + 15327^2 .

It is a cyclic number.

It is not a de Polignac number, because 282223813 - 2²⁵ = 248669381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282223819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605398 + ... + 605863.

It is an arithmetic number, because the mean of its divisors is an integer number (70858827).

Almost surely, 2^282223813 is an apocalyptic number.

It is an amenable number.

282223813 is a deficient number, since it is larger than the sum of its proper divisors (1211495).

282223813 is a wasteful number, since it uses less digits than its factorization.

282223813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211494.

The product of its digits is 9216, while the sum is 31.

The square root of 282223813 is about 16799.5182371400. The cubic root of 282223813 is about 655.9406588264.

The spelling of 282223813 in words is "two hundred eighty-two million, two hundred twenty-three thousand, eight hundred thirteen".